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XG-40/3.82-M Fuel (Boiler warm start)

--- The material should be fed when the bed temperature is higher than 500℃ (this data is the recommended value for the bituminous coal, the exact one should be determined after adjustment).
--- The feeder should be manually controlled.
--- The shut-off valve of hopper should be opened.
--- The sealing air for the removing of feeder and the insulation of gate valve should be opened.
--- No. 1 coal feeder of commissioning(under the minimum speed) every interval of 90s feeder coal 90s three pulses to coal.
--- Whether the fuel ignition is successful or not can be determined according to the bed-temperature rising condition (>5℃/min) and the burning or lighting of the furnace particles.
--- If the ignition is successful, the feeder should continue to operate with the lowest speed.
--- No. 2 coal feeder of commissioning (under the minimum speed).
--- If needed, reduce the output of the under-bed oil burner and increase the feeder speed simultaneously.
--- Check the bed-temperature rising rate and add some fuel further, and the bed pressure should be increased to be 6Kpa.
--- The limestone feeding function should be put into use (manually), and the limestone feeder’s output should be adjusted to be 10%.
--- If the oil pressure is lower than the lowest and the bed temperature is higher than 850℃, one oil burner can be cut off. For the sake of the increasing of the load, the feeding amount should be increased simultaneously.
--- If the oil burner is cut off, the primary air damper should be open slowly. As a certain amount of air is needed for the cooling down of the mixed air nozzle in the burner, turn off the air damper of the under-bed burner gradually but not totally shut off.
--- Under the premise that the bed temperature is maintained to be unchanged, the other oil burner should be cut off, and the feeding amount should be adjusted in order to increase load steady.
--- According to the specific curve, the primary air flow can be increased along with the increasing of boiler load.
--- If the fixed values of the main steam pressure and temperature are achieved, the load control and the feeder control should be put into use.
--- The limestone feeder should be automatically controlled. And the SO2 control should be put into use.
--- By the means of slag-discharging of the slag cooler or the adding of bed material, the bed pressure should be maintained to be about 6KPa .
--- Monitor the bed temperature, main steam temperature and main steam pressure.
--- The main steam pressure should be automatically controlled.


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